24 March 1999 Rapid thermal bleaching in doped sillenites
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Abstract
Thermal stability of photochromic effect existing at temperatures below 100 K in scandium doped germanium sillenites (BGO:Sc) was investigated. The single crystals of sillenites were obtained by the Czochralski technique. Some thermally stimulated processes related to the photochromic properties of doped sillenites were noticed. Process of thermal bleaching was studied in a wide spectral range and in various conditions. Both equilibrium thermal bleaching and non-equilibrium one leading to so called thermoabsorption were intensively studied. On the base of proposed model of thermoabsorption the energies of trap centers were calculated. It has been shown that some optical properties of sillenites are very sensitive to the procedure and conditions in which the coloring process was provided.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Miroslaw Zaleski, Miroslaw Zaleski, Mieczyslaw Tadeusz Borowiec, Mieczyslaw Tadeusz Borowiec, Henryk Szymczak, Henryk Szymczak, Andrzej Majchrowski, Andrzej Majchrowski, Jozef Zmija, Jozef Zmija, } "Rapid thermal bleaching in doped sillenites", Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); doi: 10.1117/12.343002; https://doi.org/10.1117/12.343002
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